2 base/libs Base Libraries
7 sys/drivers Hardware drivers / externel Kernel modules
8 sys/fs Filesystem / Blockdevice Utilities
10 sys/serial Serial communications & terminal emulation
11 sys/utils System Utilities
12 sys/firmware Firmware for Hardware Devices
13 sys/hw Hardware related System utilities
14 app/archive Compression and Archivers
17 app/crypto Cryptography
18 app/debug Debugging and Analyzing
19 app/editor Editor and Pager
21 net/acct IP Accounting
23 net/debug Network Analyzing
25 net/fs Network Filesystems
29 net/misc Networking Misc
31 net/perf Networking Performance
32 net/ppp PPP / PPPoE / PPTP
35 net/route Routing and Bridging
36 net/security Network Security
37 net/voip Voice-over-IP
42 x11/apps Xorg applications
43 x11/utils Xorg utilities
44 x11/drivers Xorg server and drivers
47 x11/libs Xorg libraries
48 libs/audio Audio Libraries
49 libs/comp Compression Libraries
50 libs/crypto Crypto Libraries
51 libs/data XML and JSON Libraries
52 libs/db Database Libraries
53 libs/fonts Font Libraries
54 libs/image Image Libraries
55 libs/misc Misc Libraries
56 libs/net Networking Libraries
57 libs/video Video Libraries
58 dev/lang Programming Languages
60 dev/python Python modules
61 dev/scm Souce Code Management
62 dev/tools Programming Tools
63 dev/header Header files